NICKEL ALLOY 625 (Inconel® 625)
DESCRIPTION
Nickel Alloy 625 (Inconel® 625/UNS N06625) is a popular nickel-chromium alloy that offers users a high level of strength, ease of fabrication, and excellent corrosion resistance. Nickel Alloy 625 is known for its impressive high temperature strength, resistance to oxidation and a wide range of corrosive elements, and weldability.
PRODUCT FORM
Supra Alloys meets its customers’ specialty metal needs by offering Nickel Alloy 625 in the following product forms:
Nickel Alloy 625 Slit Coil (ASTM B446/AMS 5666)
Nickel Alloy 625 Cut-to-Length (ASTM B443/AMS 5599)
Nickel Alloy 625 Strip (ASTM B443/AMS 5599)
APPLICATION
High Temperature Alloys like Nickel Alloy 625 can be used in a number of different applications due to its strength, environmental resistance, and high-temperature stability. Supra Alloys’ customers represent many different sectors but most often Nickel Alloy 625 is seen in:
Aerospace applications:
- Aircraft ducting systems
- Engine exhaust
- Thrust reverser systems
Sea water applications:
- Wire rope for mooring cables
- Propeller blades
- Submarine auxiliary propulsion motors
- Sheathing for undersea communication cables
Chemical processing field:
- Heat exchangers
- Valves
Nuclear reactors:
- Reactor-core components
- Control rod components
CHEMICAL COMPOSITION
The chemical composition of Nickel Alloy 625 is as follows:
|
Element |
Content (%) |
|
Nickel, Ni |
60 |
|
Chromium, Cr |
22 |
|
Molybdenum, Mo |
9 |
|
Iron, Fe |
4 |
|
Niobium, Nb |
3.5 |
|
Titanium, Ti |
0.3 |
|
Manganese, Mn |
0.3 |
|
Aluminum, Al |
0.3 |
|
Silicon, Si |
0.25 |
|
Carbon, C |
0.05 |
|
Sulfur, S |
0.003 |
|
Phosphorous, P |
0.01 |
PHYSICAL PROPERTIES
The physical properties of Nickel Alloys 625 are:
|
Properties |
Metric |
Imperial |
|
Density |
8.44 g/cm³ |
0.305 lb/in³ |
|
Melting point |
1330°C |
2425°F |
MECHANICAL PROPERTIES
The following table shows the mechanical properties of Nickel Alloys 625.
|
Properties |
Metric |
Imperial |
|
Hardness, Rockwell B (typical annealed) |
95 |
95 |
|
Tensile strength (for flat products (<4″ thickness) and seamless tube and pipe) |
≥ 827 MPa |
≥ 120000 psi |
|
Yield strength (for flat products (<4″ thickness) and seamless tube and pipe) |
≥ 414 MPa |
≥ 60000 psi |
|
Elongation at break (typical annealed) |
45% |
45% |
INCONEL is a trademark of the Special Metals Corporation group of companies.